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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: MP2/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/6-31G*
 hartrees
Energy at 0K-189.098070
Energy at 298.15K-189.100931
HF Energy-188.599552
Nuclear repulsion energy72.529251
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at MP2/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3147 2967 25.02      
2 A1 1605 1513 5.08      
3 A1 1301 1227 28.55      
4 A1 786 742 2.17      
5 A2 1032 973 0.00      
6 B1 3252 3066 36.21      
7 B1 1209 1140 7.65      
8 B2 1287 1213 0.17      
9 B2 953 899 23.98      

Unscaled Zero Point Vibrational Energy (zpe) 7285.8 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 6870.5 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at MP2/6-31G*
ABC
0.95723 0.82284 0.48670

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.730
H2 0.925 0.000 1.309
H3 -0.925 0.000 1.309
O4 0.000 0.750 -0.438
O5 0.000 -0.750 -0.438

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.09131.09131.38821.3882
H21.09131.85092.11392.1139
H31.09131.85092.11392.1139
O41.38822.11392.11391.5007
O51.38822.11392.11391.5007

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 57.283 C1 O5 O4 57.283
H2 C1 H3 116.006 H2 C1 O4 116.475
H2 C1 O5 116.475 H3 C1 O4 116.475
H3 C1 O5 116.475 O4 C1 O5 65.434
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability